China's rise and its challenges, the emergence of robotics as a major economic force, Greece's fiscal woes, and the threat posed by a warming climate are among the most important things happening in the world today.
The Founders knew defense was important, which is why they made it a central part of the governmentâs. In his paper, âThe Price of Liberty: Providing for the Common Defense,â Matthew Spalding explains: It is the constitutional duty of the federal government to secure the countryâs international borders and preserve and protect its territorial integrity, to strengthen and preserve its constitutional government, and to promote the long-term prosperity and well-being of its people.
The idea behind the defense in depth approach is to defend a system against any particular attack using several independent methods. It is a layering tactic, conceived by the National Security Agency (NSA) as a comprehensive approach to information and electronic security.